evaluate the expression 5x^2+2y when x=-3 and y=20

Answer 1

To evaluate the expression 5x^2+2y when x=-3 and y=20, substitute the given values into the expression:

5(-3)^2 + 2(20)

Simplify:

5(9) + 40 = 45 + 40 = 85

Therefore, when x=-3 and y=20, 5x^2+2y equals 85.